Links: PYTHON
Rel:
Ref: return self
Tags: #public

---

>>> class Counter(object):
...     def __init__(self, start=1):
...         self.val = start
...     def increment(self):
...         self.val += 1
...         return self
...     def decrement(self):
...         self.val -= 1
...         return self
...
>>> c = Counter()

-> now, chain-able method calls

>>> c.increment().increment().decrement()
<__main__.Counter object at 0x1020c1390>